#ifndef FUNC_H
#define FUNC_H

class Func {
   private:
    int a;
    int b;
    int c;

   public:
    Func(int a, int b, int c) : a(a), b(b), c(c) {}
    int operator()(const int &x, const int &y) {
        return a * x + b * y * y + c;
    }
};

#endif